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Prevalence of asthma: a comparative study of urban and rural Xhosa children
C. H. VAN NIEKERK, E. G. WEINBERG, S. C. SHORE, H. DE V. HEESE, D. J. VAN SCHALKWYKVolume:
9
Year:
1979
Language:
english
Pages:
6
DOI:
10.1111/j.1365-2222.1979.tb02489.x
File:
PDF, 356 KB
english, 1979